2024 ICD-10-CM Diagnosis Code B85.4

Mixed pediculosis and phthiriasis

• B85.4 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2024 edition of ICD-10-CM B85.4 became effective on October 1, 2023.
• This is the American ICD-10-CM version of B85.4 – other international versions of ICD-10 B85.4 may differ.

Applicable To

• Infestation classifiable to more than one of the categories B85.0-B85.3

The following code(s) above B85.4 contain annotation back-references

 that may be applicable to B85.4:

• A00-B99  Certain infectious and parasitic diseases

Approximate Synonyms

• Mixed pediculosis
• Pediculosis, mixed

ICD-10-CM B85.4 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

• 606 Minor skin disorders with mcc
• 607 Minor skin disorders without mcc

Convert B85.4 to ICD-9-CMCode History

• 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
• 2017 (effective 10/1/2016): No change
• 2018 (effective 10/1/2017): No change
• 2019 (effective 10/1/2018): No change
• 2020 (effective 10/1/2019): No change
• 2021 (effective 10/1/2020): No change
• 2022 (effective 10/1/2021): No change
• 2023 (effective 10/1/2022): No change
• 2024 (effective 10/1/2023): No change

Diagnosis Index entries containing back-references to B85.4:

• InfestationB88.9
  • PediculusB85.2
    • mixed B85.4 (classifiable to more than one of the titles B85.0-B85.3)
• Lice (infestation) B85.2
  • mixed B85.4 (classifiable to more than one of the titles B85.0-B85.3)
• Pediculosis (infestation) B85.2
  • mixed B85.4 (classifiable to more than one of the titles B85.0-B85.3)